After completing this unit the student will be able to:
- Explain what it means to use spectroscopic methods for qualitative and quantitative analysis.
- Identify the terms in and describe deviations to Beer’s Law.
- Describe the effect of changing the slit width and the impact it will have on qualitative and quantitative analyses.
- Qualitatively determine the relative error in absorbance measurements and determine the optimal range for measurement purposes.
- Describe the desirable features of a radiation source. 6. Explain the advantages of a dual versus single-beam spectrophotometer.
- Explain the difference between a 3- and 4-level laser and why it is not possible to have a 2-level laser.
- Compare the output of and advantages of prisms and gratings as dispersing elements.
- Explain how a photomultiplier tube works.
- Explain how an array detector works and describe the advantages of using an array detector.
- 1.1: Introduction to Molecular Spectroscopy
- Molecular spectroscopy relates to the interactions that occur between molecules and electromagnetic radiation. Electromagnetic radiation is a form of radiation in which the electric and magnetic fields simultaneously vary. One well known example of electromagnetic radiation is visible light. Electromagnetic radiation can be characterized by its energy, intensity, frequency and wavelength.